Wheelock SA-70 Installation Instructions Manual Download Page 1

P81416 T 

Sheet 1 of 10 

8

 

273 Branchport Avenue 
Long 

Branch, 

N.J. 

 

07740        

Thank you for using our products.

 

(732)  222-6880 

INSTALLATION INSTRUCTIONS  

SPEAKER AMPLIFIER 

 

Use this product according to this instruction manual.  Please keep this instruction manual for future reference. 

 
 

MODEL NUMBERS: 
 

 

SA-70 

4"  SPEAKER WITH SQUARE, FLUSH GRILLE 

SA-90 

4"  SPEAKER WITH ROUND, FLUSH GRILLE 

SA-C8-A 

8"  SPEAKER WITH ROUND, FLUSH, PLASTIC GRILLE 

SA-B4 

4"  SPEAKER IN A SURFACE MOUNT HOUSING 

 
 

FCC REGULATIONS: 

This equipment complies with Part 68 of the FCC Rules.  On the back of this equipment is a label that contains, among other 
information, the FCC Registration Number and the Ringer Equivalence Number (REN) for this equipment.  You must, upon request 
provide this information to your telephone company. 
 
 
The REN is also useful to determine the quantity of devices that you may connect to your telephone line and still have all of those 
devices ring when your telephone number is called.  In most, but not all areas, the sum of the REN's of all devices connected to one 
line should not exceed five (5.0).  To be certain of the number of devices that you may connect to your line, you may want to contact 
your local telephone company. 
 
 
Should the equipment cause harm to the telephone network, the telephone company shall, if possible, notify the customer that 
temporary discontinuance of service may be required; however, where prior written notice is not possible, the telephone company 
may temporarily discontinue service without notice, if such action is necessary under the circumstances.  The telephone company may 
make changes in its communication facilities, equipment and operations procedures, where such action is reasonably required in the 
operation of its business and is not inconsistent with the rules and regulations of the Federal Communications Commission. 
 
 
Do not attempt to repair or modify this equipment.  Repairs to this product will be performed by Wheelock Inc. 273 Branchport Ave, 
Long Branch, NJ 07740 in accordance with Wheelock Inc.'s published Terms and Conditions of Sale.  This equipment should not be 
used on coin telephone lines.  Connection to party line service is subject to state tariffs. 
If trouble is experienced, disconnect this equipment from the telephone line to determine if it is causing the malfunction.  If the 
equipment is determined to be malfunctioning, its use shall be discontinued until the problem has been corrected. 
 
 

NOTE:

  All 

CAUTIONS

 and 

WARNINGS

 are identified by the symbol

  

.

  All warnings are printed in bold capital letters. 

 

  WARNING:  READ THESE INSTRUCTIONS CAREFULLY.  FAILURE TO COMPLY WITH ANY OF THE 

FOLLOWING INSTRUCTIONS, CAUTIONS AND WARNINGS COULD RESULT IN IMPROPER APPLICATION, 
INSTALLATION AND/OR OPERATION OF THESE PRODUCTS IN AN EMERGENCY SITUATION, WHICH COULD 
RESULT IN PROPERTY DAMAGE AND SERIOUS INJURY OR DEATH TO YOU AND/OR OTHERS. 

 
 
 
 
 
Copyright 1987-1994, 1997 Wheelock, Inc.  All rights reserved. 

APPLICATION INFORMATION: 

Summary of Contents for SA-70

Page 1: ...equired however where prior written notice is not possible the telephone company may temporarily discontinue service without notice if such action is necessary under the circumstances The telephone company may make changes in its communication facilities equipment and operations procedures where such action is reasonably required in the operation of its business and is not inconsistent with the ru...

Page 2: ...elock Zone Control is required as an interface for Zoned Paging Systems For Single Zone Paging a Wheelock PRM 150 Preamplifier with an RPS 2406 Power Supply is required as an interface Figure 3 shows a speaker amplifier connected to a tone generator for telephone alerting or night ringing with paging Figure 3 Figure 4 shows the same tone generator and speaker amplifier activated by a common audibl...

Page 3: ...ne or more audio page ports Figure 7 A 8 OHM Amplified 1 3 Watts page port Maximum capacity is 125 speaker amplifiers B 600 OHM low power page port Maximum capacity is 10 speaker amplifiers See System Capacity below If a PRM 150 preamplifier is used then maximum capacity is 150 speaker amplifiers SYSTEM CAPACITY ...

Page 4: ... 90 SA B4 SA C8 A On Axis 1W 1KHz 1M 95 98 4FT 93 96 10FT 85 88 Amplifier Signal Input Impedance 600 Ohms Signal Input Level 15 dBM 0 1Vrms to 10 dBM 2 4Vrms Nominal Power Input Voltage 24VDC 18VDC minimum 28VDC maximum Nominal Input Current 45 mA 24VDC Maximum Input Current 170 mA 24VDC Power Output Rating 1 0 Watt Terminals 4 Screw Terminal Clamps INSTALLATION INFORMATION A SA C8 A SA 70 and SA ...

Page 5: ...reasing volume results in the speaker being louder in its covered area but does not increase the area covered by the speaker The design goal of speaker placement is to allow people to hear just about the same volume from anywhere in the room The goal is accomplished with a symmetrical layout of the ceiling speakers which achieves edge to edge area coverage as shown in Figure 9 Figure 9 Typical Cei...

Page 6: ...all Whenever possible wall mounted speakers should be aimed in the same direction when required to project further than 30 or 35 feet Pillars or posts are often available to facilitate this type of installation Although the pillar locations will vary Figure 11 provides a useful guide Note that a stagger pattern should be maintained Figure 11 Wall Speaker Layout Speakers Mounted On One Wall And Pil...

Page 7: ... the surface of a wall Remove the top cover by pushing the latch at the bottom of the housing base with a small screwdriver see Figure 14 Disconnect the speaker wires by unplugging them from the P C Board pins P1 red and P2 black Figure 15 is the mounting template Simply locate the template at the desired location and mount the base to the wall with the screws provided Connect wires as specified i...

Page 8: ...4 square 1 1 2 deep extension ring see Figure 19 The SA C8 A is designed to mount flush in the ceiling A speaker support bracket Wheelock s Model Number SSB 8 and a backbox Wheelock s model number CBB 8 are available See Figure 18 Figure 17 Figure 18 Figure 19 WIRING INFORMATION Use D type station wire 24 AWG or other suitable wire Table 4 is a guide for the number of speaker amplifiers per audio ...

Page 9: ...ower lines to the terminals designated as GND and 24VDC TROUBLESHOOTING CHART Problem Possible Cause and Correction No sound 1 Is the volume control turned up clockwise 2 Check presence and polarity of 24VDC and GND at the speaker 3 Check audio level on T and R at speaker and if necessary also at the audio source Low volume 1 Check that volume control is turned up 2 Check for the sufficient audio ...

Page 10: ...URPOSES OR WHETHER IT WILL ACHIEVE THE USER S INTENDED RESULTS THERE IS NO WARRANTY AGAINST DAMAGE RESULTING FROM MISAPPLICATION IMPROPER SPECIFICATION ABUSE ACCIDENT OR OTHER OPERATING CONDITIONS BEYOND WHEELOCK S CONTROL SOME WHEELOCK PRODUCTS CONTAIN SOFTWARE WITH RESPECT TO THOSE PRODUCTS WHEELOCK DOES NOT WARRANTY THAT THE OPERATION OF THE SOFTWARE WILL BE UNINTERRUPTED OR ERROR FREE OR THAT ...

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